Home / 28,150-42,197.04-15,675.72

Finding the Fourth Proportional to 28,150, 42,197.04 and 15,675.72

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Solution

The fourth proportional to 28,150, 42,197.04 and 15,675.72 is: 23,498.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,150 : 42,197.04 = 15,675.72 : x
  2. Step 2: Convert to fraction form
    28,150/42,197.04 = 15,675.72/x
  3. Step 3: Cross multiply
    28,150x = 42,197.04 × 15,675.72
  4. Step 4: Simplify right side
    28,150x = 661,468,983.87
  5. Step 5: Solve for x
    x = 661,468,983.87/28,150
  6. Step 6: Final answer
    x = 23,498.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.